baber/WOPTO huggingface dataset:
Patent GB-871831-A (GB)
Title: Improvements in or relating to the production of elemental silicon
Inventor: KREHMA IGNACE JOSEPH
IPC: C01B33/033
Filed: 1958-01-14
Abstract: <PICT:0871831/III/1> In the production of silicon of at least 99.99% purity by passing a silicon halide vapour, preferably silicon tetrachloride, and zinc or cadmium vapour into an enclosed reaction zone at a temperature above the boiling point of the metal and below the melting point of silicon, to form silicon which is deposited in the zone, and zinc or cadmium halide, which may be condensed outside the zone, the silicon halide and metal vapour reactants are purified by passing them into the reaction zone via an enclosed purification zone, in communication with the reaction zone, in which a pool of the boiling metal is maintained.  The temperature of the silicon halide vapour here introduced is below the boiling point of the metal.  It is thought that the small quantity of silicon which is formed in the purification zone, and is deposited in and about the pool, carries with it the impurities present in the reactants.  In the Figure, a reservoir 1, which may be purged with an inert gas, feeds molten zinc or cadmium to vaporizer 4, from which the vapours are passed to purification zone 9 containing a pool of boiling metal 11. Silicon halide is vaporized in vaporizer 12, and is preferably introduced into the purification zone at 100 DEG C.-300 DEG C.  The mixed vapours then pass into the reaction zone 15, which is preferably maintained at 907 DEG C.-1100 DEG C.  Pure silicon is deposited, and metal halide is collected in by-product collecting zone 20.  When the reactor is almost full of silicon the supply of metal vapour is cut off and the reactor is allowed to cool, preferably to 50 DEG C.-200 DEG C., the flow of silicon halide vapour being maintained. If desired, all or part of the silicon halide vapour employed may be bubbled through the metal pool.  The apparatus is preferably constructed of silica.  The silicon has improved electrical properties.
Patent GB-1287073-A (GB)
Title: Roll stand
IPC: B21B13/00
Filed: 1971-01-13
Abstract: 1287073 Rolling mills SIEMAG SIEGENER MASHINENBAU GmbH 13 Jan 1971 [22 Jan 1970] 1579/71 Heading B3M A roll stand is provided with working rolls whose chocks are adjustable by means of eccentrics and coupling straps, the connection between the chocks and straps permitting the chocks to be readily replaced. The stand, which may be of two-high of universal type (as shown), incorporates a pair of frames 1 and 2 (Fig. 3) beween which chocks 12 and 13 for the horizontal rolls 14 and 15 (Fig. 1), and chocks 20 for the vertical rolls 21 and 22, are supported. The frames are mounted on a base 3 and connected at their upper ends by removable crossmembers 4. The chocks 12 and 13 are coupled by straps 7 and 8 to eccentrics 5 and 6. The eccentrics are connected by worm gearing and suitable shafts to a common adjusting motor 18. The chocks 20 of the vertical rolls are similarly coupled to a common motor 26. For removal of the rolls, composite bolts 10, 11 which connect each chock to its straps 7 or 8 are retracted axially inwardly. This allows free movement of the chocks in the frames 1 and 2. If the lower chock 13 (Fig. 3) is to be removed vertically, it may either have a rectangular cross-section, or be formed from two separable parts. Between the straps 7 and 8 and the respective bolts 10, 11 are located eccentric bushes 9 which are rotatably adjustable to allow coarse adjustment of the chocks.
Patent GB-937831-A (GB)
Title: Capacity pick-off devices
IPC: G01D5/241
Filed: 1960-01-15
Abstract: 937,831. Measuring bridges. SPERRY RAND CORPORATION. Jan. 15, 1960 [Jan. 26, 1959], No. 1607/60. Class 37. [Also in Group XXXVIII] A capacity displacement pick-off (see Group XXXVIII) comprises three, fixed, parallel plate or co-centric cylindrical electrodes, and a common, movable electrode which is translatable along a line parallel to the plates or to their common axis, to vary differentially the capacitances of the outer pairs of electrodes. The unbalance is measured in an A.C. bridge, using an amplifier with feed-back, via the central fixed electrode, whereby the electrostatic coercive forces opposing displacement are eliminated. Specification 793,820 is referred to.
Patent GB-881568-A (GB)
Title: Improvements in or relating to storage arrangements comprising movable containers
IPC: A47B53/02
Filed: 1959-01-16
Abstract: 881,568. Storage systems. INGOLD, H. Jan. 16, 1959 [Jan. 24, 1958; Jan. 5, 1959], No. 1610/59. Class 78 (4). In a storage system, e.g. for books comprising a number of wheeled containers 1-5, Fig. 1, mounted on rails, the containers may be coupled and moved through a distance B by container 1 which is secured to a chain drive 8 whereby they may be shunted to provide a gangway between any two containers. The chain 8, Fig. 4, is driven by a motor 15 and the direction of drive is controlled by switches 18 and 19, operated by relays 20 and 21 respectively, via which the 3-phase mains supply 46 is connected to the motor. A low-tension supply for operating the relays is derived from the transformer 49 connected to one phase of the supply. The two relay control circuits extend via overhead lines to controls on the containers, including switches 29 and 30 on container 1 which are operated by co-operation between plunger 26 and ramp 27 and plunger 31 and ramp 32 respectively to limit the movement of container 1. Switchboards 37 on containers 2-5 and 17 include emergency switches 39 which weak the relay circuit and hence the motor circuit (these are also provided on containers 1 and 16), switches 40 which are keyoperated and prepare the circuit for operation of associated switches 41 and 42 which control the forward and reverse movement of the container 1 respectively. In the coupled position a slide 34 on one container lifts a roller 36 on an adjacent container whereby a switch 35 in that container is operated. This switch is in parallel with the key-operated switch 40 on the container so that a key-operated switch is only effective on a container (container 2 as shown) adjacent a working gangway on which the switch 35 is unoperated. Movement of the containers is therefore controlled from a point overlooking the gangway ensuring safe opertion. Further safety measures include switch 43 on container 1 which opens the motor circuit when its plunger contacts a body or object in its path, switches 44 which are operated by chain weakage and key-operated switch 53 in the main control circuit.
Patent GB-1079784-A (GB)
Title: A machine press
IPC: B30B15/00
Filed: 1965-01-14
Abstract: 1,079,784. Punching and shearing. S. SHIOKAWA. Jan. 14, 1965 [Jan. 17, 1964], No. 1690/65. Heading B3W. A mechanical press comprises a C-frame 2 and a ram 1 which reciprocates in guides in the frame. The ram is driven by a bell-crank 7 which is pivotally mounted on a shaft 8. The upper end of the lever is bifurcated to form lugs between which a nut 6 is mounted by stubshafts 6<SP>1</SP>. Through the nut passes a screw 5 which has spherical end surfaces which engage mating surfaces on thrust members 3 and 4. The thrust member 4 is screwed into the upper part and can be removed to expose a socket in the screw 5, which can then be turned by a wrench to displace the ram relative to the lever 7. The lower end of the lever is slotted at 9 and receives a sliding block 10<SP>1</SP> mounted on the crank-pin of a crank-shaft 10 to which is secured a gear-wheel 11. Two idler wheels 12 mesh with the gear 11 and with a pinion 14 mounted on the shaft 16 of a flywheel 15 which is driven by an electric motor and connected to the shaft 16 by a compressed air friction clutch.
Patent GB-1208661-A (GB)
Title: Motor-pump assemblies
Inventor: GANGLOFF JEAN
IPC: F04D13/06
Filed: 1968-01-12
Abstract: 1,208,661. Casings, core constructions and insulation for dynamo-electric machines. J. GANGLOFF. 12 Jan., 1968 [24 April, 1967], No. 1983/68. Heading H2A. In a motor-pump assembly, for a hot water central heating installation, comprising a planar air gap motor, the motor rotor 5 and an impeller 7 are fixed to opposite ends of a hollow rotatable shaft 4 mounted in a bearing bush 3 on the stator 2 and some of the pumped fluid lubricates the bearing and passes through the motor air gap and the hollow shaft back to the main fluid channel a one-way valve 18 preventing flow of fluid along the shaft from the impeller towards the rotor. The stator is protected from the fluid by a non-rusting partition 8, and the rotor by shells 11, 12 made of, e.g. copper or stainless steel. Figs. 2, 3, 4 (all not shown) show various modifications in securing the motor casing to the volute of the pump, Figs. 3 and 4 also showing a modification wherein the protective covers 8, 11 and 12 are omitted, the stator coils are coated with a hot water resistant resin and the rotor cape is made of cast copper or aluminium. Centrifuging back blades 19 on the impeller prevent any impurities in the fluid reaching the bearing bush 3 and also reduces the thrust on a thrust bearing 6.
Patent GB-706490-A (GB)
Title: Filament tensioning means for electron discharge devices
Inventor: CARLSTRUM THURE HENRY
IPC: H01J1/18
Filed: 1951-01-25
Abstract: 706,490. Discharge apparatus. SYLVANIA ELECTRIC PRODUCTS, Inc. Jan. 25, 1951, No. 1985/51. Class 39(1) To save the space required by an additional structure in a small discharge tube, the filamentary cathode 17 is tensioned by a spring 32 mounted on a bridge member 29 carried by one of the other electrodes, 27. The bridge 29 connects the two sections 14a, 14b, of the anode, the two grids being supported on rods 18a, 19a. The lower end of the cathode 17 is secured to a rod 34 and the upper end is electrically connected to a rod 35 through the spring 32 and a stop bracket 36. A coating on the bridge 29 insulates the cathode from the anode. All electrodes are mounted between two insulating discs 21. Specification 650,448 is referred to.
Patent GB-776768-A (GB)
Title: Improvements relating to hypodermic syringes
Inventor: EVERETT SAMUEL JAMES
IPC: A61M5/24
Filed: 1954-01-22
Abstract: 776,768. Hypodermic syringes. EVERETT & CO., Ltd., S. & R. J. Jan. 17, 1955 [Jan. 22, 1954], No. 2061/54. Classes 81(1) and 81 (2) A syringe holder contains a medicament cartridge having a resilient rear closure having an integral rearwardly extending projection which is grasped by a chuck formed at the front end of a plunger to form a piston, a hypodermic needle being. mounted at the front of the holder and arranged to pierce the cartridge front closure. A holder 1 is fitted with a double-ended needle 5 and contains a cartridge 26 having rubber front and rear closures 29, 25. The rear closure 29 has an integrally moulded rearwardly extending cylindrical spigot 24. The plunger consists of a tube 14 of hexagonal crosssection surrounding an axially slidable rod 20. The front end of the rod 20 has longitudinal splits 21 and is formed into two jaws 23. The rear end of the rod 20 is threaded into a knob 18 which is secured to the tube 14 by a pin 17 fitting in a groove 16. Rotation of the knob 18 moves the rod 20 in the tube 14 to cause the opening and closing of the jaws 23. The front end of the tube 14 and the jaws 23 are formed with conical' surfaces 15, 22 which, when the rod 20 is retracted in the tube 14, engage to cause the jaws 23 to close and grasp the spigot 24. A sheetmetal wedge 9 is slotted into the rear end of the holder 1 and is arranged so that when it is moved transversely of the holder 1 it presses the cartridge 26 forwardly so that the needle 5 pierces the front closure 29. The front face 10 of the wedge 9 is perpendicular to the axis of the cartridge 26 and the rear face 11 is sloping and serrated so that it may engage an edge of the holder 1 to secure the wedge 9 in any desired position According to the Provisional Specification, the wedge has means for lifting one end of the cartridge from the holder. Specifications 741,604 and 776,769 are referred to.
Patent GB-543531-A (GB)
Title: Improvements relating to electric contact thermometers and the like
IPC: G01K5/16
Filed: 1941-02-14
Abstract: 543,531. Mercury switches. CROCKATT & SONS, Ltd., W., and CROCKATT, W. C. Feb. 14, 1941, No. 2062. [Class 38 (v)] A thermometer, with contact wires 4 fuzed into the bore 3 at intervals has stem and contacts supported firmly over the greater part of its length in an outer tube 7 by means of packing material 6, for example plaster of paris. The stem and wires may be first coated with insulating or resilient material 5 such as rubber. Specification 372,916, [Group XXXVI], is referred to.
Patent GB-228180-A (GB)
Title: Improvements relating to parachutes
IPC: B64D17/00
Filed: 1925-01-23
Abstract: 228,180. Blanquier, M., and Vinay, L. Jan. 25, 1924, Convention date]. Parachutes.-The load on a parachute is suspended by cables 3 attached to points 4 between the centre and the periphery of the fabric in addition to the usual peripheral cables 2 in order to form a central dome surrounded by a series of similarly shaped parts. The areas into which the fabric is thus subdivided is provided with separate vents 8.
Patent GB-1045362-A (GB)
Title: Improvements in or relating to trolleys or the like and track therefor
Inventor: JOHNSTONE GEORGE BERNARD
IPC: B65G67/20
Filed: 1964-01-17
Abstract: 1,045,362. Railway vehicle undercarriages; load supports adjustable in height. JOLODA TRANSPORT EQUIPMENT Ltd. Jan. 12, 1965 [Jan. 17, 1964; Feb. 7, 1964; April 28, 1964], Nos. 2094/64, 5271/64 and 17544/64. Heading B7L. [Also in Division E1G. A loading truck comprises a channel section platform 10 supported through rollers 23, 24 on inclined planes 19 formed on bogies 11, 12 carried on rollers 17. The bogies are linked by a member 32 and are connected by a link 31 to a bell-crank lever 36 pivoted on the platform 10, such that rotation of the lever 36 by a rod inserted in a hole 35 moves the bogies to cause the rollers 23, 24 to ride up the planes 19, thereby lifting the platform until the rollers 23, 24 locate themselves in grooves 20. The raising and lowering mechanism may be tripped by a sprag 37 hinged to the bell-crank lever and bearing on a pivot 29.
Patent GB-1371817-A (GB)
Title: Method and apparatus for the preparation of precooked meat products
IPC: A23L13/00
Filed: 1972-01-17
Abstract: 1371817 Steam cooking M R JEPPSON 17 Jan 1972 [15 Jan 1971] 2163/72 Heading A4D [Also in Division A2]  A pre-cooked storable meat product, for example bacon, is prepared by pre-heating the product by exposure to steam, if desired followed by a hot non-aqueous gas, and the heating by micro-wave irradiation. Fats rendered in the above two-step pre-heating may be continuously drained from the product, that from the steam step being combined with the other while in the presence of the non-aqueous gas. The steam preheating may be effected in counter-current. The cooked product may be exposed to a hot non- aqueous gas to dry it to a desired moisture content, and then either sealed into an airtight sterilized container while still hot, or chilled and packed in a closed container, which may be airtight and contain an inert atmosphere, for storage under refrigeration. A suitable apparatus comprises conveyer means for the product, at least one pre-heating housing surrounding a first portion thereof with a steam supply thereto, and electrically conductive means forming a micro-wave irradiation housing around a subsequent portion thereof.
Patent GB-882667-A (GB)
Title: Improvements relating to measuring instruments
IPC: G01P1/08
Filed: 1960-01-21
Abstract: 882,667. indicating-apparatus. DAIMLERBENZ A.G. Jan. 21, 1960 [Feb. 7, 1959], No. 2200/60. Class 106 (4). In indicating apparatus of the kind having an elongated window 13 disposed substantially horizontally or vertically and an indicating mark 16 which moves longitudinally of the window and is carried on a drum 12, Fig. 1, whose surface is moved transversely of the window or on a band 27, Fig. 5, which is movable substantially longitudinally of the window, the drum or band has arranged thereon a distinctive coloured section 21, 22, 23, Fig. 2, for each of a plurality of ranges of values, in such a manner that in each range the whole indicating mark visible in the window has the colour of that range from zero up to the measured value indicated. The mark 16 which may be white, is inclined to the window 13 and separates the coloured part 15 of the drum 12 or band 27 from a neutral part 14 which may match the frame of the window and be, e.g. black. The lines of separation between the sections 21, 22, 23 are parallel to the window 13 and may be coloured green, orange and red. The window 13 has cut-out parts 20 or its width is abruptly increased, Fig. 2, at the limits of the selected ranges. The width of the window may increase from the low end to the high end of the scale. Reference has been directed by the Comptroller to Specifications 832,875 and 844,575.
Patent GB-1215001-A (GB)
Title: Improvements in or relating to insulating oils
Inventor: MUNDAY WILLIAM ALEXANDER
IPC: H01B3/20
Filed: 1967-01-16
Abstract: 1,215,001. Insulating oils. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 19 Dec., 1967 [16 Jan., 1967], No. 2206/67. Heading C5F. An insulating, hydraulic or turbine oil comprises an aromatic/aliphatic alkylation product and a hindered phenol with or without a metal deactivator. The phenol may be 2,6- di-t-butyl phenol or 4,4<SP>1</SP>-methylene-bis-(2,6- di-t-butyl phenol). The metal deactivator may be disalicylal ethylene di-imine, 5-butyl-1,2,3- benztriazole and triazene- 1 ,3-bis-(3-pyridyl). The alkylate may be an olefin/benzene product.
Patent GB-841402-A (GB)
Title: Improvements in or relating to electrical switching circuits
IPC: H01L39/18
Filed: 1958-01-23
Abstract: 841,402. Superconductive relays. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 23, 1958 [Jan. 29, 1957], No. 2307/58. Class 40 (9). In a bi-stable circuit comprising two superconductive elements G1, G2, each connected to a current source I in series with a control winding C2, C1 on the other element, the transfer of a superconductive state from one element to the other is initiated by selectively energizing one of two biasing conductors B1, B2. The outputs of the two elements are applied to respective control windings C3, C4 of further superconductive elements G3, G4 located in separate output channels 40, 41. In operation, to establish a resistive state in element G1, for example, switch S is opened for a short period during which bias switch S0 is closed. Similarly bias switch S1 is closed when it is desired to transfer the superconductive state of G2 back to G1 It is stated that the biasing field by itself need not be sufficient to destroy superconductivity in its associated element. In the arrangement described, the superconductive elements are tantalum wires, the bias wires, control windings and connecting leads are formed from niobium, and the operating temperature is such that niobium remains superconductive at all times.
Patent GB-248338-A (GB)
Title: Transportable apparatus for projecting moving pictures
IPC: G03B29/00
Filed: 1926-01-26
Abstract: 248,338. Debrie, A. L. V. C. Feb. 26, 1925, [Convention date]. Kinematograph apparatus.-A projector casing comprises a compartment forming a spool box capable of housing the pay-out spool box during transport of the apparatus; means for enabling reverse winding and rewinding to be effected, and for automatically reducing the illumination during stationary projection, may be provided. The casing comprises a sheet iron &c. box having a hinged front 3, doors 8, 32, hinged respectively at 9 and 33, a partition 2, and partitions 6. 7 forming the take-up spool box. The pay-out spool box 10, containing its spool 11, and the side-plates 12 of the take-up spool are housed within the take-up box during transport, the pay-out spool box being capable of use on top of the casing in the position 10'. Fig. 3, for projection and in the position 10<11> for rewinding. The mechanism comprises a hand-drive shaft 22 geared by wheels 21, 24, 25, 26 to the shaft of a motor 16 carrying a shutter 19. The top and bottom sprockets 27, 28 and an intermittent sprocket 29 are driven from the wheel 21, and the motor shaft carries a centrifugal device 50 linked to a spring-pressed plate 52 controlling a lever 54 carrying a contact 56. A multi-filament projection lamp is used, and the contact 56 engages a contact 57, to complete the circuit giving maximum illumination, when the speed is sufficient for kinematographic projection; reduction of speed, or stoppage of the mechanism for stationary projection, causes the contacts to separate and the illumination to be reduced. Reverse winding and rewinding are effected by reversing the direction of drive and driving the pay-out spool, and an arm 40 carrying a spindle 39 for the pay-out spool is pivoted so that it may lie within the casing during transport or may be raised for use in rewinding &c. The spindle 39 is provided with a pulley 42 driven by a belt 43 from a pulley 44 on the pivot of the arm 40, the pulley 44 being geared by wheels 45, 46 to the wheel 21. When the film is rewound without being passed through the gate., the arm 40 is moved along its pivot shaft 48 to the position 40<11>, and the spool box is placed in the position 10<11>. A reversing switch 38 for the motor and a rheostat 17 are housed within the casing.
Patent GB-548731-A (GB)
Title: Improvements in and relating to the preparation of tocopherol
IPC: C07D311/72
Filed: 1941-02-20
Abstract: 548,731. Treating food for animals. DISTILLATION PRODUCTS, Inc. Feb. 20, 1941. Nos. 2310 and 2311. Convention dates, March 2, 1940 and Aug. 24, 1940. [Class 5 (ii)] [Also in Groups IV, III, V and VI] Animal feeds are protected from oxidation by adding a sludge or scum obtained in the carrier gas treatment of vegetable or marine oils or by adding a refined product from such sludge or scum. According to an example, a dry oil of light brown colour, containing 2 per cent. of gamma tocopherol and suitable for addition to animal feeds, is obtained by heating corn oil deodorizer hotwell sludge with concentrated hydrochloric acid, boiling, allowing the acid and dissolved chlorides to settle, washing the supernatant oil with water, decanting the oil and centrifuging it. Specification 446,792, [Group III], is referred to.
Patent GB-785604-A (GB)
Title: Improvements relating to wall-supporting structures for mines
IPC: E21D7/00
Filed: 1954-01-26
Abstract: 785,604. Bolt-hole bushes; spiked plates. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES. Jan. 26, 1954 [Feb. 14, 1953], No, 2310/54. Classes 89(1) and 89(2) A supporting structure for a mine wall or a pit shaft has individual members 9, Fig. 3, connected to one another by means comprising a disc 6 rotatably guided within a disc 1 and a clamping member, such as a bolt 3, arranged eccentrically with respect to the disc 1. The disc 6 is preferably mounted eccentrically within the disc 1 which is accommodated within a lug 11 at the end of a strut 10. Rotation of the disc 1 which is accommodated with a lug take place due to soil pressure and permits relative adjustment of the members of the supporting structure. The members 9 and discs 1 may have roughened or grooved surfaces where they are in contact with each other. In Fig. 1, the member 1 has prongs 4 driven into a bunton 2. The bolt 3 may be replaced by a cotter or wedge fastening.